fix "your browser is not supported" message (wrong i18n codes)
add noscript warning for browsers with disabled js.

also fixed some minor glitches with the browser unsupported dialog
add missing css class
fix export->"raw data" for JSON data.

1. fix for: in the GeoJson conversion some of the data did get modified
2. format the exported json nicely
remove outdated note
update translations
update locales, activate japanese
Merge branch 'master' into gh-pages